> ## Documentation Index
> Fetch the complete documentation index at: https://mintfax.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Live

> Real fax delivery, real credits, real recipients

Live is one of two [environment types](/docs/environments). Faxes sent in a live environment are delivered to real fax machines and deduct real credits.

Sandbox and live use the same API. Three things differ in live: real charges, real recipients, and an activation gate. See [Sandbox and live](/docs/environments#sandbox-and-live) for the full comparison, and [Account activation](/docs/activation) for the gate flow.

## API keys

Live keys start with `mfx_live_`. They cannot authenticate against sandbox environments and vice versa. Generate them from the dashboard after the account is activated.

## Multiple live environments

You can create as many live environments as you need: one per application, per client, per region. They share a single account-level live credit pool, so a top-up against one is available to all of them. Activation is account-level too. Once any first live purchase succeeds, every live environment under the account is immediately usable.

## Related

* [Account activation](/docs/activation) for the gate and the `activated_at` timestamp
* [Environments](/docs/environments) for routing and isolation
* [Credits](/docs/credits) for the account-pool model and hold/capture/release lifecycle
* [Go live](/docs/go-live) for the production-readiness checklist